#21737B#21737B

#21737B is a mid, moderate teal. Relative luminance 0.140; OKLCH L 51.1% C 0.077 H 204.6°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#21737B
RGB	rgb(33, 115, 123)
HSL	hsl(185, 58%, 31%)
HSV	hsv(185, 73%, 48%)
CMYK	cmyk(73.2%, 6.5%, 0%, 51.8%)
CIE-LAB	lab(44.25, -21.09, -11.48)
CIE-LCH	lch(44.25, 24.01, 208.56°)
OKLab	oklab(51.13% -0.0697 -0.0319)
OKLCH	oklch(51.13% 0.077 204.6)
XYZ	xyz(10.3315, 14.0137, 20.8955)
Luminance	0.1401 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21737B #7B2921

analogous

#217B56 #21737B #21467B

triadic

#21737B #7B2173 #737B21

tetradic

#21737B #56217B #7B2921 #467B21

square

#21737B #56217B #7B2921 #467B21

split-complementary

#21737B #7B2146 #7B5621

monochromatic

#07191A #14464B #21737B #2EA0AB #48C2CE

Accessibility & contrast

On white

5.52

#21737B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#21737B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21737B

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21737B	#FFFFFF	#000000	##FFFFFF
##21737B	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696E7C

Deuteranopia (green-blind)

#5C657B

Tritanopia (blue-blind)

#007875

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #21737b;
/* rgb */ color: rgb(33, 115, 123);
/* oklch */ color: oklch(51.1% 0.077 204.6);

Tailwind

colors: {
  custom: {
    50: '#6b9ba1',
    500: '#21737b',
    950: '#000000',
  },
}

SCSS

$custom: #21737b;
$custom-light: #6b9ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#21737b",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 123
  },
  "hsl": {
    "h": 185.333,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.51133,
    "c": 0.07665,
    "h": 204.6
  },
  "luminance": 0.14015
}

Semantic roles & 50–950 ramp

primary

#21737B

secondary

#AE534A

accent

#5547E1

background

#F6F9F9

surface

#ECF2F2

border

#C7CCCC

text

#070E0E

muted

#7A7E7E

Preview Lab

Preview with #21737B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →